Specification: Battery type: Li-ion Voltage: 14.8V Capacity:4400mAh 65Wh Cell: 8 Cells recharge cycles: 500 Operation time: Around 2.5-4.5hours_________________________________ Compatible Models A42N1403 A42LM93 4ICR19/66-2 GFX71JY4710 G751J-BHI7T25____________________________ Compatible Part Numbers ASUS ROG GFX71JY 17.3" GFX71JY4710(16GB/1TB/256GB) Series ASUS G751 G751J G751JL G751JT G751JY G751J-BHI7T25 Series ASUS GFX71 GFX71J GFX71JM GFX71JT GFX71JY GFX71JY4710 Series